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Class Information
Number: 175/351
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Laterally offset cutter axis > Disk blade
Description: Apparatus in which the rolling cutter element comprises a cutting wheel having a smooth, unbroken, sharpened, cutting edge at its periphery.










Sub-classes under this class:

Class Number Class Name Patents
175/352 Plural coaxial cutters 4


Patents under this class:

Patent Number Title Of Patent Date Issued
7017683 Cutter for tunnel boring machine Mar. 28, 2006
6857488 Boring head cutter Feb. 22, 2005
6533050 Excavation bit for a drilling apparatus Mar. 18, 2003
6247544 Duckbill with cutting teeth Jun. 19, 2001
6230826 Drilling apparatus an excavation bit May. 15, 2001
5341889 Ring clamp for a cutter ring in a tunnel drilling machine Aug. 30, 1994
5147000 Disc drill bit Sep. 15, 1992
5064007 Three disc drill bit Nov. 12, 1991
3998282 Earth boring auger Dec. 21, 1976
3998283 Earth boring auger Dec. 21, 1976
3982595 ROCK BORING CUTTER WITH REPLACEABLE CUTTING ELEMENTS Sep. 28, 1976











 
 
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